优化数据库初始化逻辑，新增配置热更新与自动迁移支持，升级相关依赖

internal/bootstrap/bootstrap.go

@@ -65,6 +65,16 @@ func Init(webFS embed.FS, configPath string) *gin.Engine {
 		util.Logger.Fatal("Failed to initialize database")
 	}
 
+	// 注册数据库配置变更回调，支持热迁移
+	config.OnDBConfigChange = func(newCfg *config.Config) {
+		util.Logger.Info("Database configuration change detected, initiating migration...")
+		if err := repo.MigrateDataToNewDB(repo.DB, newCfg); err != nil {
+			util.Logger.Error("Automatic data migration failed", zap.Error(err))
+		} else {
+			util.Logger.Info("Automatic data migration finished")
+		}
+	}
+
 	// 4. 初始化存储
 	var s storage.Storage
 	var err error

internal/config/config.go

@@ -127,6 +127,9 @@ var (
 	GlobalConfig *Config
 	configLock   sync.RWMutex
 	v            *viper.Viper
+
+	// OnDBConfigChange 当数据库配置发生变更时的回调函数
+	OnDBConfigChange func(newCfg *Config)
 )
 
 func Init(configPath string) error {
@@ -206,8 +209,19 @@ func Init(configPath string) error {
 		var newCfg Config
 		if err := v.Unmarshal(&newCfg); err == nil {
 			configLock.Lock()
+			oldDBConfig := GlobalConfig.DB
 			GlobalConfig = &newCfg
+			newDBConfig := newCfg.DB
 			configLock.Unlock()
+
+			// 检查数据库配置是否发生变更
+			if oldDBConfig.Type != newDBConfig.Type || oldDBConfig.DSN != newDBConfig.DSN {
+				// 触发数据库迁移逻辑
+				// 这里由于循环依赖问题，我们可能需要通过回调或者一个统一的 Reload 函数来处理
+				if OnDBConfigChange != nil {
+					OnDBConfigChange(&newCfg)
+				}
+			}
 		}
 	})
 	v.WatchConfig()

internal/http/router.go

@@ -14,6 +14,7 @@ import (
 	"BingPaper/internal/http/handlers"
 	"BingPaper/internal/http/middleware"
 
+	"github.com/gin-contrib/cors"
 	"github.com/gin-gonic/gin"
 	swaggerFiles "github.com/swaggo/files"
 	ginSwagger "github.com/swaggo/gin-swagger"
@@ -22,6 +23,14 @@ import (
 func SetupRouter(webFS embed.FS) *gin.Engine {
 	r := gin.Default()
 
+	// CORS 配置：更宽松的配置以解决 Vue 等前端的预检请求问题
+	corsConfig := cors.DefaultConfig()
+	corsConfig.AllowAllOrigins = true
+	corsConfig.AllowMethods = []string{"GET", "POST", "PUT", "PATCH", "DELETE", "HEAD", "OPTIONS"}
+	corsConfig.AllowHeaders = []string{"Origin", "Content-Length", "Content-Type", "Authorization", "Accept", "X-Requested-With"}
+	corsConfig.AllowCredentials = true
+	r.Use(cors.New(corsConfig))
+
 	// Swagger
 	r.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
 

internal/repo/db.go

@@ -76,21 +76,20 @@ func (l *gormLogger) Trace(ctx context.Context, begin time.Time, fc func() (stri
 	}
 }
 
-func InitDB() error {
-	cfg := config.GetConfig()
-	var dialector gorm.Dialector
-
-	switch cfg.DB.Type {
+func GetDialector(dbType, dsn string) (gorm.Dialector, error) {
+	switch dbType {
 	case "mysql":
-		dialector = mysql.Open(cfg.DB.DSN)
+		return mysql.Open(dsn), nil
 	case "postgres":
-		dialector = postgres.Open(cfg.DB.DSN)
+		return postgres.Open(dsn), nil
 	case "sqlite":
-		dialector = sqlite.Open(cfg.DB.DSN)
+		return sqlite.Open(dsn), nil
 	default:
-		return fmt.Errorf("unsupported db type: %s", cfg.DB.Type)
+		return nil, fmt.Errorf("unsupported db type: %s", dbType)
 	}
+}
 
+func GetGormConfig(cfg *config.Config) *gorm.Config {
 	gormLogLevel := logger.Info
 	switch cfg.Log.DBLogLevel {
 	case "debug":
@@ -105,13 +104,23 @@ func InitDB() error {
 		gormLogLevel = logger.Silent
 	}
 
-	gormConfig := &gorm.Config{
+	return &gorm.Config{
 		Logger: &gormLogger{
 			ZapLogger: util.DBLogger,
 			LogLevel:  gormLogLevel,
 		},
 		DisableForeignKeyConstraintWhenMigrating: true,
 	}
+}
+
+func InitDB() error {
+	cfg := config.GetConfig()
+	dialector, err := GetDialector(cfg.DB.Type, cfg.DB.DSN)
+	if err != nil {
+		return err
+	}
+
+	gormConfig := GetGormConfig(cfg)
 
 	db, err := gorm.Open(dialector, gormConfig)
 	if err != nil {